9) The H.N.O appearing on Sands casino chips DOES NOT stand for Hughes Nevada Operations. Sorry friend, those chips were issued by the Sands Hotel & Casino for use by junkets and issued for a specific junketeer out of Chicago who brought players to the Sands. They were handed out on the airplane as it headed to Las Vegas. They could not be cashed out at the cage but had to be played in order to convert to regular Sands house chips. If you were smart you and your friend would play craps. He taking the do and you playing the don’t. After a period of time you could “wash” the junket chips and cash out the regular house chips at the cage and have a nice free three day, two night trip to Vegas.

Take from "The Perlowski files"